One third of a number t is less than or equal to 5

t ≤ 15

Step-by-step explanation:

The number is t, and 1/3 of that number would be t

So:

t ≤ 5

If we solve for t we get out answer.

t = 5  Divide each side by

When you divide by a fraction you take it's inverse and multiply,

so becomes which is the same as 3.  

Now we have t = 5*3

t = 15

So t must be less than or equal to 15.

t ≤ 15

You can check your answer by choosing a number greater than 15 and less than 15.

Let's choose 12 and 18.

t ≤ 5                                                     t ≤ 5

(12) ≤ 5                                                 (18) ≤ 5

4 ≤ 5                                                        6 ≤ 5

Yes!                                                           No!

So our answer is correct.

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

£56

step-by-step explanation:

u divide 24 by 3 and u get 8 so if u do 8 time 7 or 8+8+8+8+8+8+8 u get 56 and 56 divided by 7 is 8.